Heating-stove.



C. P. MINNICK.

HEATING STOVE.

APrLIoATIox ruim un. 3, 190s.

901,985. Patented oct. 27,I 190s.

z Enma-snm 1.

Swanton maven I W M i C. P. MINNICK.

HEATING STOVE.

` APPLIUATION FILED JAN. al, 190s.

901 ,985,l V Patented Oct. 27, 1908.'

2 SHEETS-SHEET 2 3mm/wor,

akto'onup CHARLES F. MINNIOK, OF NORTH POWDER, OREGON.

HEATING-STOVE.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed January 3, 1908. Serial No. 409,140.

To all whom it' may concern:

Be it known that I, CHARLES F. MiNNIcn, a citizen of the United States,residing at North Powder, in the county of Union and State of Oregon,have invented a new and useful lfleating-Stove, of which the Vfollowingis a specification.

This invention relates to heating stoves and it is more particularlydesigned for using sawdust as a fuel.

llie object of the invention is to provide a stove of this characterhaving a magazine for holding sawdust, said magazine being readilyaccessible for the purpose of filling it and being provided with meanswhereby the sawdust can be fed onto the grate as rapidly as desired.

lilith these and other objects in view the invention consists of certainnovel features of constrtaztion and combinations of parts which will behereinafter more fully described and pointed out in the claims.

in the accompanying drawings is shown the preferred form of theinvention.

.lin said drawings: Figure 1 is a vertical section through a stoveembodying the present improvements. Fig. 2 is a section on line .oa-50,Fig. 1. Fig. 3 is a section on line .i/-fi Fia 1- lteferring to thefigures by characters of reference, 1 designates the base of the stove,the same having an upstanding preferably cylindrical casing 2constituting the ash box of the stove, the base and casing beingpreferably formed of cast metal, said casing being provided with aninwardly directed flange at its upper end provided with a circularretaining' rib 4e upon its upper face. This rib is adapted to surroundthe lower end of a cylindrical sheet metal casing 5 of any desiredheight, the upper. end of which is surrounded by a circular bead 6formed upon the lower face of the stove top 7 Bolts 8 extendlongitudinally along the outer face of the casing 5 and are fastened tothe top 7 and the flange 3 so as to bind said parts upon the ends of thecasing 5 and form a rigid structure.

The grate of the stove consists of a metallic disk 9 provided with aplurality of apertures 10, said disk being preferably formed of a metalwhich is not easily affected by heat. An arm 11 extends radially fromthe plate 9 and through a slotl in the stove casing 5 and constitutesmeans whereby the grate can be conveniently shaken. A large centralorifice 12 is formed in the. grate and slidably mounted therein is atubular stem 13 carrying a conical head 14 at its upper end, said headconstituting a valve as hereinafter stated. A yoke 15 is pivotallyconnected at that portion of the stem 13 within the ash box and an arm16 extends from this yoke and through a slot 17 in casing 2. Theprojecting portion of this arm has a handle 18 and is provided withratchet teeth 19 any one of which may be engaged by a pawl 20 pivotedupon the casing 2.

rl`he stove top 7 has a central opening 21 designed to be closed by aremovable lid 22 and secured to the lower surface of the top T andaround the opening 21 is a magazine 23 preferably formed of sheet metaland which gradually tapers from its lower to-` ward its upper end. Thelower end of this magazine is slightly iiared at 24 and constitutes aseat for the head 141s. A smoke pipe 25 extends from the upper portionof casing 5 and is provided with a suitable damper 2G.

vDoors 27 and 28 constitute means whereby access may be conveniently hadto the fire box and the ash box 30 respectively.

31 designates the lining of the fire box and which may be of anypreferred material.

It is to be understood that the normal position of the head 14C isagainst its seat 21k the same being held in this position by pawl. Q0which engages the nearest ratchet tooth 19. Lid 22 is removed andmagazine 23 is filled with sawdust. After a fire has been started uponthe grate 9 pawl 20 is raised so as to permit a desired upward movementof the outer end of arm 16, this movement causing a correspondingdownward movei'nent of head lll. The arm 1G can be held in any positionto which it is moved by lowering pawl Q() into engagement therewith.Sawdust will feed by gravity downward around the head let and onto thegrate and the lire will thus be constantly supplied with fuel.

The products of combustion pass upwardv around the magazine and thenceoutward through pipe 25.

It has been found that a stove constructed and operated in the mannerherein described constitutes an efficient heating medium and byproviding a fuel feed suoli as described the operation of the stovefron'i a single charge of fuel can be prolonged for a considerableperiod. The grate 9 cooperating with the yoke 15 constitutes eflicientmeans for holding the stem 13 properly centered but it is of course tobe understood that if desired. any suitable additional means may beemployed to hold the stem, 13 in place. As this stem is formed of tubingit is possible for air to pass therethrough and the same is thusprevented from becoming burned by the heat generated within the firebox.

Although the connecting rodsS have been shown extended along the outsideoi the casing it is to be understood that if preferred these rods can beplaced inside of the casing where they will not be visible.

What is claimed is:

l. In a stove the combination with a casing and a grate therein; of amagazine supported above the grate, a combined closure and spreadingmeans within the lower end of the magazine, and means entirely outsideof the magazine for lowering said spreading means to release and spreadthe contents of the magazine upon the grate.

Q. A stove comprising a casing, a grate therein, a magazine suspendedwithin the casing and above the grate, a conical closure in the bottomof the magazine, a stem depending therefrom and guided by the grate,means tor actuating the stem to shift the closure, and means i'orlocking the closure in shifted position.

A stove comprising a casing, a grate therein, a magazine suspendedwithin the casing and above the grate, said magazine having an openbottom and tapered toward its upper end, a closure for said upper' end,a combined closure and spreading device for the lower end of themagazine, and separate means below the magazine for lowering and lockingsaid device.

4. A. stove comprising a casing, a grate therein, a magazine suspendedwithin the casing and above the grate, said magazine having its lowerend open and flared, a removable closure for the upper end of themagazine, a conical closure for the lower end thereof, a stem dependingfrom said conical closure and guided within the grate, and means foractuating the stem to shift the closure.

5. A stove comprising a casing, a grate therein, a magazine suspendedwithin the asing and above the grate, said magazine having its lowerend' open and flared, a removable closure for the upper end of then'iagazine, a conical closure forthe lower end thereof, a stem dependingfrom said conical closure and guided within the grate, an actuating armpivotally connected to said stem, and means engaging the arm for lockingit in adjusted position.

ln testimony that claim the foregoing as my own, have hereto aiXed mysignature in the presence of two witnesses.

CHARLES F. MlNNlCK. lWitnesses En. J. Joints, S. M.' MANN.

